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Weight regulation and bone mass: a comparison between professional jockeys, elite amateur boxers, and age, gender and BMI matched controls

Journal of Bone and Mineral Metabolism volume 30, pages 164–170 (2012)Cite this article

Abstract

The aim of this study was to compare bone mass between two groups of jockeys (flat: n = 14; national hunt: n = 16); boxers (n = 14) and age, gender and BMI matched controls (n = 14). All subjects underwent dual energy X-ray absorptiometry (DXA) scanning for assessment of bone mass, with measurements made of the total body, vertebra L2–4 and femoral neck. Body composition and the relative contribution of fat and lean mass were extrapolated from the results. Data were analysed in accordance with differences in body composition, in particular, height, lean mass, fat mass and age. Both jockey groups were shown to display lower bone mass than either the boxers or control group at a number of sites including total body bone mineral density (BMD) (1.019 ± 0.06 and 1.17 ± 1.05 vs. 1.26 ± 0.01 and 1.26 ± 0.06 g cm−2 for flat, national hunt, boxer and control, respectively), total body bone mineral content (BMC) less head, L2–4 BMD and femoral neck BMD and BMC (p < 0.05). Regression analysis revealed that lean mass and height were the primary predictors of total body BMC, although additional group-specific influences were present which reduced bone mass in the flat jockey group and enhanced it in the boxers (R 2 = 0.814). Reduced bone mass in jockeys may be a consequence of reduced energy availability in response to chronic weight restriction and could have particular implications for these athletes in light of the high risk nature of the sport. In contrast, the high intensity, high impact training associated with boxing may have conveyed an osteogenic stimulus on these athletes.

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References

  1. Proteau S, Pelle A, Collomp K, Benhamou L, Courteix D (2006) Bone density in elite judoists and effects of weight cycling on bone metabolic balance. Med Sci Sports Exerc 38:694–700

    Article  Google Scholar 

  2. Walberg Rankin J (2006) Making weight in sports. Clinical sports nutrition, 3rd edn. In: Burke L, Deakin V (eds). McGraw Hill Medical, pp 175–199

  3. Zanker CL, Cooke CB (2004) Energy balance, bone turnover, and skeletal health in physically active individuals. Med Sci Sports Exerc 36:1372–1381

    PubMed  Article  CAS  Google Scholar 

  4. Sabo D, Bernd L, Pfeil J, Reiter A (1996) Bone quality in the lumbar spine in high performance athletes. Eur Spine J 5:258–263

    PubMed  Article  CAS  Google Scholar 

  5. Trutschnigg B, Chong C, Habermayerova L, Karelis AD, Komorowski J (2008) Female boxers have high bone mineral density despite low body fat mass, high energy expenditure and a high incidence of oligomenorrhea. Appl Physiol Nutr Metab 33:863–869

    PubMed  Article  Google Scholar 

  6. Warrington GD, Dolan E, McGoldrick A, McEvoy J, MacManus C, Griffin M, Lyons D (2009) Chronic weight control impacts on physiological function and bone health in elite jockeys. J Sports Sci 27:543–550

    PubMed  Article  Google Scholar 

  7. Leydon MA, Wall C (2002) New Zealand jockeys’ dietary habits and their potential impact on health. Int J Sport Nutr Exerc Metab 12:220–237

    PubMed  CAS  Google Scholar 

  8. Dolan E, O’Connor H, O’Loughlin G, McGoldrick A, Warrington G (2011) Nutritional and lifestyle practices of the horse-racing jockey. J Sports Sci 29:791–799

    PubMed  Article  Google Scholar 

  9. Slater GJ, Rice AJ, Sharpe K, Jenkins D, Hahn AG (2007) Influence of nutrient intake after weigh-in on lightweight rowing performance. Med Sci Sports Exerc 39:184–191

    PubMed  Article  Google Scholar 

  10. ISCD Writing Group (2004) Diagnosis of osteoporosis in men, premenopausal women and children: position statement. J Clin Densitom 7:17–26

    Article  Google Scholar 

  11. Molgaard C, Thomsen BL, Prentice A, Cole TJ, Michaelsen KF (1997) Whole body bone mineral density in healthy children and adolescents. Arch Dis Child 76:9–15

    PubMed  Article  CAS  Google Scholar 

  12. Prentice A, Parsons TJ, Cole TJ (1994) Uncritical use of bone mineral density in absorptiometry may lead to size-related artifacts in the identification of bone mineral determinants. Am J Clin Nutr 60:837–842

    PubMed  CAS  Google Scholar 

  13. Boot AM, de Ridder MA, van der Sluis IM, van Slobbe I, Krenning EP, de Muinick Keizer-Schrama SM (2010) Peak bone mineral density, lean body mass and fractures. Bone 46:336–341

    PubMed  Article  Google Scholar 

  14. Kroger H, Kotaniemi A, Vainio P, Alhava E (1992) Bone densitometry of the spine and femur in children by dual Energy X-ray absorptiometry. Bone Miner 17:75–85

    PubMed  Article  CAS  Google Scholar 

  15. ISCD Writing Group (2004) Indications and reporting for dual energy X-ray absorptiometry: position statement. J Clin Densitom 7:37–44

    Article  Google Scholar 

  16. Lewiecki EM, Gordon CM, Baim S, Leonard MB, Bishop NJ, Bianchi ML, Kalkwarf HJ, Langman CB, Plotkin H, Rauch F, Zemel BS, Binkley N, Bilezikian JP, Kendler DL, Hans DB, Silverman S (2008) International society for clinical densitometry 2007: adult and pediatric official positions. Bone 43:1115–1121

    PubMed  Article  Google Scholar 

  17. Hitchens PL, Blizzard CL, Jones G, Day LM, Fell J (2009) The incidence of race-day jockey falls in Australia, 2002–2006. Med J Aust 190:83–86

    PubMed  Google Scholar 

  18. Waller AE, Daniels JL, Weaver NL, Robinson P (2000) Jockey injuries in the United States. J Am Med Assoc 283:1326–1328

    Article  CAS  Google Scholar 

  19. Brown JP, Josse RG (2002) 2002 clinical practice guidelines for the diagnosis and management of osteoporosis in Canada. Can Med Assoc J 167:1–34

    Google Scholar 

  20. Center JR, Nguyen TV, Pocock N, Eisman JA (2004) Volumetric bone density at the femoral neck as a common measure of hip fracture risk for men and women. J Clin Endocrinol Metab 89:2776–2782

    PubMed  Article  CAS  Google Scholar 

  21. Carter DR, Bouxsein ML, Marcus R (1992) New approaches for interpreting projected bone densitometry data. J Bone Miner Res 7:137–145

    PubMed  Article  CAS  Google Scholar 

  22. Cvijetic S, Korsic M (2004) Apparent bone mineral density estimated from DXA in healthy men and women. Osteoporos Int 15:295–300

    PubMed  Article  Google Scholar 

  23. Bass SL, Eser P, Daly R (2005) The effect of exercise and nutrition on the mechanostat. J Musculoskelet Neuronal Interact 5:239–254

    PubMed  CAS  Google Scholar 

  24. Frost HM (2003) Bone’s mechanostat: a 2003 update. The Anatomical Record Part A 275:1081–1101

  25. Cure-Cure C, Capozza RF, Cointry GR, Meta M, Cure-Ramirez P, Ferretti JL (2005) Reference chart for the relationships between dual energy X-ray absorptiometry assessed bone mineral content and lean mass in 3,063 healthy men and premenopausal and postmenopausal women. Osteoporos Int 16:2095–2106

    PubMed  Article  Google Scholar 

  26. Ihle R, Loucks AB (2004) Dose response relationships between energy availability and bone turnover in young exercising women. J Bone Miner Res 19:1231–1240

    PubMed  Article  Google Scholar 

  27. Gomez-Ambrosi J, Rodriguez A, Catalan V, Fruhbeck G (2008) The bone–adipose axis in obesity and weight loss: review. Obes Surg 18:1134–1143

    PubMed  Article  CAS  Google Scholar 

  28. Nattiv A, Loucks AB, Manore MM, Sunborn CF, Sundgot-Borgen J, Warren AP (2007) The female athlete triad: ACSM position stand. Med Sci Sport Exerc 39:1867–1882

    Google Scholar 

  29. Ghosh AK, Goswani A, Ahuja A (1995) Heart rate and blood lactate response in amateur competitive boxing. Indian J Med Res 102:179–183

    PubMed  CAS  Google Scholar 

  30. Lal Khanna G, Manna I (2006) Study of physiological profile of Indian boxers. J Sports Sci Med 5:90–98

    Google Scholar 

  31. Andreoli A, Monteleone M, Van Loan M, Promenzio L, Tarantino U, De Lorenzo A (2001) Effects of different sports on bone density and muscle mass in highly trained athletes. Med Sci Sports Exerc 33:507–511

    PubMed  CAS  Google Scholar 

  32. Calbet JAL, Herrera PD, Rodriguez LP (1999) High bone mineral density in male elite professional volleyball players. Osteoporos Int 10:468–474

    PubMed  Article  CAS  Google Scholar 

  33. Elloumi M, Ben Ounis O, Coutiex D, Makni E, Sellami S, Tabla Z, Lac G (2009) Long term rugby practice enhances bone mass and metabolism in relation with physical fitness and playing position. J Bone Mine Metab 27:713–720

    Article  Google Scholar 

  34. Morel J, Combe B, Francisco J, Bernard J (2001) Bone mineral density of 704 amateur sportsmen involved in different physical activity. Osteoporos Int 12:152–157

    PubMed  Article  CAS  Google Scholar 

  35. Wittich A, Mautalen CA, Oliveri MB, Bagur A, Somozoa F, Rotemberg E (1998) Professional football (soccer) players have a markedly greater skeletal mineral content, density and size than age and bmi matched controls. Calcif Tissue Int 63:112–117

    PubMed  Article  CAS  Google Scholar 

  36. Rector RS, Rogers R, Ruebel M, Widzer MO, Hinton PS (2009) Lean body mass and weight bearing activity in the prediction of bone mineral density in physically active men. J Strength Cond Res 23:427–435

    PubMed  Article  Google Scholar 

  37. Cullen SJ, Warrington G, Dolan E, Moran K (2009) An analysis of the impact forces of different modes of exercise as a causal factor to the low bone mineral density in jockeys. International Conference on Biomechanics PS, pp 4–33

  38. Leonard MB, Shults J, Elliott DM, Stallings VA, Zemel BS (2004) Interpretation of whole body dual energy X-ray absorptiometry measures in children: comparison with peripheral quantitative computed tomography. Bone 34:1044–1052

    PubMed  Article  Google Scholar 

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Author information

Affiliations

  1. School of Health and Human Performance, Dublin City University, Glasnevin, Dublin 9, Ireland

    Eimear Dolan, David. T. Ashley, Noel McCaffrey & Giles. D. Warrington

  2. Birmingham Children’s Hospital, Birmingham, UK

    Nicola Crabtree

  3. The Turf Club, Kildare, Ireland

    Adrian McGoldrick

Authors
  1. Eimear Dolan
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  2. Nicola Crabtree
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  3. Adrian McGoldrick
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  4. David. T. Ashley
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  5. Noel McCaffrey
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  6. Giles. D. Warrington
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Correspondence to Eimear Dolan.

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Cite this article

Dolan, E., Crabtree, N., McGoldrick, A. et al. Weight regulation and bone mass: a comparison between professional jockeys, elite amateur boxers, and age, gender and BMI matched controls. J Bone Miner Metab 30, 164–170 (2012). https://doi.org/10.1007/s00774-011-0297-1

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  • DOI: https://doi.org/10.1007/s00774-011-0297-1

Keywords

  • Weight category athletes
  • Bone mass
  • Boxers
  • Jockeys